Dispensing container



H. F. KIRKwooD DISPENSING CONTAINER Jan.l 8, 1946.

2 Sheets-Sheet l Filed Dec. 29, 1944 INVENTOR.

A'ITD RN EYE Jan. 8, 1946. Hf F. KlRKwooD DISPENSING CONTAINER l 2 Sheets-Sheet 2 Filed Dec. 29, 1944 Patented Jan. 8, 1946 YUNIT-.ED vSTATI-:s PATENT oF F I c E msPENsING CONTAINER I HughY F. Kirkwood, York Village, Maine .Y Application December 29, 1944,1seria1N0. 570,351

7 Claims.

My invention relates to the packagingand `handling'of'plastic materials such as shaving cream, shoe polish and the like, and has *among its objects and advantages the provision of an improved dispensing container.

In thefaccompanying drawings:

Figure 1 is-a side .view .of the invention.

Figure 2 isan enlarged sectional viewalong the line 2--2 of Figure 1.

Figure 3 is an enlargedsectional viewalong the line 3-3 of Figure 1.

Figure 4 is an enlarged sectional view along the line 4-4 of Figure 2.

Figure 5 is a fragmentary sectional .view of a spring mount.

Figure 6 is an endview cfa spring tensioning screw.

Figure 1 isa side view of the .package ccntaining part of the container as in theform `purchased by the user.

Figure 8 is an enlarged sectional viewalong .the linev 8-8 of Figure 7, and

Figure 9 is an enlargedsectional View along the line 9-9 of Figure 7.

In the embodiment of the invention selected for illustration, Figures '1, 8.and k9 illustrate a `package or tube structure I0 for-containing the plastic material to `be dispensed.` This tube structure comprisesa barrel I2 4provided with a piston I4 vin one end thereof. This piston is of yhollow formation, as at I6, .and the piston is provided with an open. inner end I8. While vthe piston .I4 slidably engages the inner face of the barrel I2, the piston is fitted sufficiently tight to offer considerable resistance against relative rotation.

'Ihe other end of the barrel I2 has a constricted neck 26 within which is iixedly mounteda nozzle body 22. This nozzle body is provided with, a

longitudinal bore 24 terminating short of thel outer end of the body, as the latterl appearsin Figure 9. This bore is arranged coaxially of a larger bore 26 terminatingin a valverseat 28. The body 24 is of smaller diameter than-the barrel yI2 to provide an lannular -space 30 between the (C l. 222-260) n groove 34 a short distance inwardly of its outer end to weaken the body in -a plane intersecting the bore 22. 'I'hus the end portion36 of the body may be broken off to convert the body into a nozzle structure. The piston I4 is provided with a stem provided with a short bore 40 having communication with thefcavity I6 in thepiston I4. This stem is also weakened at.42 to facilitate breaking of the stem in a plane intersecting the bore 46. Figure '1 illustrates the vtube structure I0 intact,this being theform of the tube structure as it is purchased by the user for placement vin the extruding device coacting with thetube structure and forming a part of the invention. However, the tube structure `is alsointended to be sold as a unit with the extruding structure.

The extruding structure comprises anl outer barrel 44 within which the barrel I2 is contained.

`An annular shoulder 46 is formedat one end oi the barrel 44 to constitute a rest .for a Washer 48 fitting snugly `on the neck 20. The neck 20 ts loosely in a neck 50 adjacent the annular shoulder 46, and a tip cap 52 is slipped on the neck 50 and frictionally connected therewith. This tip includes an end bore 54 through which the body or nozzle 22 is projected.

The other end of the barrel 44 is threadedly connected at 56 with a cap 58 having an annular shoulder 60 constituting a rest for `Aa vwasher 62 interposed between the shoulder and the flared end 64 of the tubeIZ. The opening inthe washer 62 is of suilicient `diameter to accommodate the piston I4, the latter projecting partly outside the tube I2 in the full condition of the latter. n f

A feed screw 68 is arranged longitudinallyfinside the tube I2 and extends loosely through the bore 40 inthe piston I4, but the screw has unthreaded relation with the piston. One end of the feed screw is provided with a rounded end 10 constituting a valve having normal seating engagement with the seat 28. The other end of the feed` screw,y is provided with a head 12 lying inside a spring housing 14. This housing is provided with coaxial bores 16 and 18, the bore 16 being of smaller diameter and provided lwith longitudinal grooves 86 for slidably containing lugs 82 on the head 12.

The screw 68 extends through a bore 84 in a wall 86 at one end of the spring housing 14, with the head v12 lying against the inner face of the Wall. A lock nut 88 is threadedly connected with the feed screw 68 and engages the outer face of the wall 86 to xedly connect the feed screw` with the spring housing 14. 

